Washington, DC (Sports Network) - Josh Willingham and Roger Bernadina both stroked a two-run double to back a solid outing by Craig Stammen, as Washington cooled off the surging Phillies, 8-1, and, in doing so, spoiled Roy Oswalt's Philadelphia debut.
Stammen (3-4) gave up one run on five hits, walked one and struck out five over 6 1/3 innings to pick up his first win since June 29. He had given up a total of 11 runs in his two previous career starts against the Phillies, including a nightmarish outing in April, when he recorded just four outs.
Adam Kennedy collected four hits, scored twice and knocked in a run for the Nationals, who have won three of their last four games.
The story entering Friday's series opener was about the newly-acquired Oswalt (6-13) making his first start for the red-hot Phillies, winners of eight in a row. The right-hander allowed five runs -- four earned -- on seven hits and walked two in six innings to absorb his third straight loss.
Philadelphia is hoping Oswalt, who opted to waive his no-trade clause to leave the languishing Astros and join the Phillies on Thursday, can be just as successful as last year's trade deadline pickup, Cliff Lee, in helping the club reach the World Series again.
Oswalt's first pitch in a Phillies uniform resulted in a leadoff triple for Nyjer Morgan, who scored on a Kennedy groundout to give Washington an early lead.
Stammen singled off the glove of first baseman Ryan Howard to begin the third. Oswalt then hit Morgan before Kennedy dropped down a bunt. Philadelphia catcher Carlos Ruiz fielded the bunt and threw to third with the intention of getting Stammen. However, nobody was covering third, which allowed Stammen to score with ease. Morgan took third on the play and came home on a Ryan Zimmerman sacrifice fly to make it 3-0.
Willingham's two-out double increased the advantage to 5-0 in the fifth.
The Phillies finally got on the board when Jayson Werth homered to leadoff the seventh, but the Nationals countered with three runs in the bottom of the inning off reliever Chad Durbin.
Willingham walked to load the bases with one out for Bernadina, who doubled to the right-field corner and two batters later Ian Desmond's sac fly pushed the lead to 8-1.
Houston received pitcher J.A. Happ and minor league prospects Jonathan Villar and Anthony Gose for Oswalt...Philadelphia shortstop Jimmy Rollins returned to the starting lineup after missing the last three games with a bruised left foot...Werth has 15 home runs this season...The Nationals were 3-for-12 with runners in scoring position.